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Why Choose Adhesives Over Traditional Fasteners?

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This webinar discusses the latest advances in structural adhesives for a range of design, manufacturing, and assembly applications. It includes an evaluation of fastening technologies, such as “instant” assembly methods using thermal joining, mechanical fastening, and tapes, as well as the benefits of new structural liquid adhesives. It offers insight into the role of the converter in the design process, from testing and materials and adhesive selection, to fabrication, manufacturing and assembly.

The webinar covers:
· The benefits and considerations of structural adhesives vs. alternative methods
· Strength and cost data for structural adhesives vs. mechanical fasteners, welding, and acrylic foam tapes
· Joint design guidelines
· Real life examples of structural adhesives in action

Published in: Technology, Business
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Why Choose Adhesives Over Traditional Fasteners?

  1. 1. Why choose adhesives over traditional fasteners?
  2. 2. Before We Start This webinar will be available afterwards at www.designworldonline.com & email Q&A at the end of the presentation Hashtag for this webinar: #WhyAdhesives
  3. 3. Moderator Presenter Leslie Langnau Brian Noonan Design World Henkel
  4. 4. Why choose adhesives over traditional fasteners? Brian Noonan, Global Technology Manager – Structurals
  5. 5. Agenda • • • • • Why Brian…Why Loctite®? Why use adhesives? Structural Bonding Economics Proper Joint Design Real life examples
  6. 6. Why Brian? o Application Engineering – 4 years o Market Development – 4 years o Global Technology Management, Structurals
  7. 7. Why LOCTITE®? • Trusted industry innovator since 1956 • Henkel is the largest adhesives company in the world
  8. 8. Introduction to Bonding
  9. 9. Why Use Adhesives • Benefits o Join Dissimilar Substrates
  10. 10. Why Use Adhesives • Benefits o o Join Dissimilar Substrates Distribute Stresses Evenly
  11. 11. Why Use Adhesives • Benefits o o Join Dissimilar Substrates Distribute Stresses Evenly Visit www.henkelna.com/loctitestructurals to view full video
  12. 12. Why Use Adhesives • Benefits o o o Join Dissimilar Substrates Distribute Stresses Evenly Fill Large Gaps
  13. 13. Why Use Adhesives • Benefits o o o o Join Dissimilar Substrates Distribute Stresses Evenly Fill Large Gaps Seals Joint
  14. 14. Why Use Adhesives • Benefits o o o o o Join Dissimilar Substrates Distribute Stresses Evenly Fill Large Gaps Seal, Bond & Protect Neat Appearance
  15. 15. Why Use Adhesives • Benefits o o o o o o Join Dissimilar Substrates Distribute Stresses Evenly Fill Large Gaps Seal, Bond & Protect Neat Appearance Easily Automated
  16. 16. Why Use Adhesives • Benefits o o o o o o Join Dissimilar Substrates Distribute Stresses Evenly Fill Large Gaps Seal, Bond & Protect Neat Appearance Easily Automated • Considerations o Must be Cured
  17. 17. Why Use Adhesives • Benefits o o o o o o Join Dissimilar Substrates Distribute Stresses Evenly Fill Large Gaps Seal and Bond Neat Appearance Easily Automated • Considerations o o Must be Cured Fixture Time
  18. 18. Why Use Adhesives • Benefits o o o o o o Join Dissimilar Substrates Distribute Stresses Evenly Fill Large Gaps Seal and Bond Neat Appearance Easily Automated • Considerations o o o Must be Cured Fixture Time Can be Messy
  19. 19. Why Use Adhesives • Benefits o o o o o o Join Dissimilar Substrates Distribute Stresses Evenly Fill Large Gaps Seal and Bond Neat Appearance Easily Automated • Considerations o o o o Must be Cured Fixture Time Can be Messy Proper Handling
  20. 20. Why Use Adhesives • Benefits o o o o o o Join Dissimilar Substrates Distribute Stresses Evenly Fill Large Gaps Seal and Bond Neat Appearance Easily Automated • Considerations o o o o o Must be Cured Fixture Time Can be Messy Proper Handling Potentially difficult to Disassemble
  21. 21. Why Use Adhesives… TO SAVE MONEY
  22. 22. Mechanical Fastening Methods Welding Riveting Use of structural bonding adhesives offer lower costs, improved reliability and more design flexibility over traditional assembly methods. Fastening
  23. 23. Mechanical Fastening Pros • Welds o Instant Full Strength o Very Strong Cons • Welds o Labor Intensive (Costly) o Substrate Distortion o Can’t Weld Dissimilar Metals o Galvanic Corrosion • Mechanical Fasteners o Instant Strength o Known Method • Mechanical Fasteners o Vibrational Loosening o Not Sealed o Adds Weight o Labor Intensive o Not Aesthetically Pleasing • Tape o Instant Fixture • Tape o Sensitive to Contamination o Low Strength o Not Adjustable
  24. 24. Strength vs. Cost Note: 1-inch overlap joints for adhesives and double-sided tape
  25. 25. Fatigue Testing
  26. 26. Cost Driver - Labor Visit www.henkelna.com/loctitestructurals to download complete white paper
  27. 27. Adhesive Technology Review Typical Weld/Rivet Reduction Adhesives
  28. 28. Joint Design Principles Tensile Shear Compressive Peel
  29. 29. Stress Stress Stress Distribution - Tensile Bond Location
  30. 30. Stress Stress Stress Distribution - Compression Bond Location
  31. 31. Stress Stress Stress Distribution - Shear Bond Location
  32. 32. Stress Distribution - Shear
  33. 33. Stress Stress Stress Distribution – Cleavage & Peel Bond Location Cleavage Peel
  34. 34. Design Alternatives - Shear Alternatives Simple strap butt joint Butt joint Double overlap Bevelled joint Shouldered double strap butt joint Double strap butt joint
  35. 35. Design Alternatives – T-Peel Pure peel force Tensile/peel forces Stiffening Transformation into tensile & pressure forces
  36. 36. Joint Design Guidelines 1. Maximize tension, compression, & shear 2. Minimize peel & cleavage 3. Increase bond area - Wider is Better
  37. 37. Real Life Examples • Automotive Impact Test • School Bus • Loctite Trailer • Stove Top • Baseball Smasher
  38. 38. Real Life Automotive Impact Test - Rivets
  39. 39. Real Life Automotive Impact Test - Rivets
  40. 40. Real Life Automotive Impact Test - Adhesives
  41. 41. Real Life Automotive Impact Test - Adhesives
  42. 42. Real Life Bus Bonding Drivers: 1. Improved safety 2. Reduction in labor 3. Improved longevity Visit www.henkelna.com/loctitestructurals to read complete article
  43. 43. Real Life Trailer Bonding Drivers: 1. Reduced labor costs 2. Faster throughput 3. Aesthetics
  44. 44. Real Life Stove Top Bonding Drivers: 1. Better aesthetics 2. Reduced scrap 3. Eliminated process step
  45. 45. “Real Life” Batting Cage Visit www.henkelna.com/loctitestructurals to view full video
  46. 46. Summary • Why use adhesives o Cost Savings, Improved Structural Strength, & Aesthetics • Proper Joint Design o Maximize tensile, compression & shear, minimize peel & cleavage • Real life examples • Why Loctite® o #1 Adhesive Company in the World
  47. 47. Total Solution Pneumatic 400 ml Dual Cartridge Applicator Custom Bulk Dispense Systems Meter Mix 1000 SS Bulk Dispense System
  48. 48. One on One Support 1-800-LOCTITE
  49. 49. Web Resources www.henkelna.com/loctitestructurals
  50. 50. Design Guides
  51. 51. Questions? Design World Leslie Langnau llangnau@wtwhmedia.com Phone: 440.234.4531 Twitter: @wtwh_rapidmfg Henkel Brian Noonan Brian.Noonan@henkel.com Phone: 860.571.2589 Twitter: @Loctite_NA
  52. 52. Thank You  This webinar will be available at www.designworldonline.com & email  Tweet with hashtag #WhyAdhesives  Connect with  Twitter: @Design_World  Facebook: /engineeringexchange  LinkedIn: Design World Group  Discuss this on EngineeringExchange.com

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